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Finding the Fourth Proportional to 298,709.20, 448,938.60 and 293,460.40

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Solution

The fourth proportional to 298,709.20, 448,938.60 and 293,460.40 is: 441,050.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,709.20 : 448,938.60 = 293,460.40 : x
  2. Step 2: Convert to fraction form
    298,709.20/448,938.60 = 293,460.40/x
  3. Step 3: Cross multiply
    298,709.20x = 448,938.60 × 293,460.40
  4. Step 4: Simplify right side
    298,709.20x = 131,745,701,131.44
  5. Step 5: Solve for x
    x = 131,745,701,131.44/298,709.20
  6. Step 6: Final answer
    x = 441,050.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.